husset



(No Model.)

2 Sheets-Sheet 1. o. A` HUSSEY. l

ELECTRIC ARC LAMP.

'Patelted May 30,

\ 2 Sheets-Sheet 2.

Patented May 80, 1882.

(No Model.)

O. A. HUSSBY.

ELEGTRC ARG LAMP.

UNITED STATES PATENT OFFICE.

CHARLES A. HUSSEY, OF NEW YORK, N. Y., ASSIGNOR TO THE HUSSEY ELECTRICCOMPANY, OF SAME PLACE.

ELECTRIC-ARC LAMP.

SPECIFICATION forming part of Letters Patent No. 258,581, dated May 30,1882.'

Application filed May 25, '1881.

To all whom it may concern:

Beit known that I, CHARLES A. HUssEY, of the city, county, and State ofNew York, have invented certain new and useful Improve` ments inElectric Lamps, of which the following is a specification.

Myimprovements consistin thecombination, in an electric lamp, of asingle electric circuit, an electro-magnet or solenoid in said circuit,an armature for said magnet or solenoid directly connected with thelower carbon, a train of wheel-work for controlling the feed of theupper carbon, a dog for controlling said wheelwork, a lever adapted tobe actuated by said armature, but so arranged that the armature may havea given range of movement before acting upon` the lever, and means fortransmitting motion from said lever to said dog to effect thedisengagement of the latter from said wheel-work and permit the feed ofthe upper carbon. The armature of the magnet-or solenoid in the abovecombination preferably has the lower carbon supported directly upon it,and lthe aforesaid lever may have a fulcrumpiece which is adjustable, toadapt the lamp for electric currents of different potentials, ashereinafter fully described.

The improvements also consist in the combination,with acarbon-holder andits supporting-rod, of two or more plates connecting` said holder androd and a pivot or pivots connecting said plates eccentrically to saidholder and rod, so that the plates may be swung laterally relatively toeach other to adjust said carbonholder into line with the oppositecarbonhold er. The said pivot or pivots may consist of a screw orscrews, which also serve as a means ot' clamping the plates togetherafter adjustment.

The improvements also consist in a novel combination of partshereinafter described and claimed.

In the accompanying drawings, Figure 1 is a view of a complete lampembodying my improvements. Fig. 2 is a central vertical section thereofon a larger scale, certain portions being broken away to economizespace. Fig. 3 is a horizontal section of the lamp on the same scale,taken at the plane of the line :c Fig. 2. Fig. 4 is a horizontal sectionof the (No model.)

lamp on the same scale, taken on the plane of the line y y, Fig. 2. Fig.5 is a horizontal section of the lamp on the same scale, taken on theplane of the line z z, Fig. 2. Fig. 6 is a vertical section of the lampon the same scale,

taken mainly on the plane of the line o e, Fig. 2, but also through thetube in which the rod of the'upper-carbon holder moves; and Fig. 7 is ahorizontal section ofthe lamp on the same scale, taken mainly on theplanes of the line w to, Fig. 2.

Similar letters of reference designate corresponding parts in all thefigures.

A designates the frame of the lamp, here shown as of rectangular form,and made up of tubular sections united with elbows by crosspins orrivets.

B and C designate respectively the upper and lower carbons ofthe lamp.

B' designates the holder for the upper' carbon, consisting of a socketadapted to receive said carbon and a set-screw for retaining said carbonin its socket.

B2 designates a rod, to which the holder B for the upper carbon isconnected. As here shown, the said holder B' is connected to its rod B2by means of three plates, 133134135, which may be of circular form. TheplatcB3is affixed to the rod B2 by a socket fitting the rod and aset-screw passing the socket and impinging against the rod. The plate B*is affixed to the plate Bsby means ofa screw, a, passing through theplate B3 and screwing into the plate B The plate B5 is secured to thelplate Bby means of a screw, b, passing through thc plate B5 and screwinginto the plate B4. It has the holder B affixed to it.

The screws a and b are about one-quarter of the circumference of theplates apart when the plates arecoincident with each other, and theyform pivotal connections between the plates, which they respectivelysecure together. Their heads also serve to clamp the plates in differentpositions to which they may be adjusted. The said plates thus combinedafford provision forshifting the upper carbon laterally into line withthe lower carbon. This is of great advantage in many cases, notably wheneither carbon is bent longitudinally, for even if the points of thecarbons, when inserted in their IOO holders, arein line, they may, afterburning, become out ofline, and then one may be adjusted into line withthe other. It' the plate B3 had a swiveling connection with the pla-te,B5 could be dispensed with and the holder B' affixed to the plate B4.

On the rod B2 of the upper-carbon holder is a longitudinally-arrangedrack, which gears into a pinion forming part of a train of wheels orwheel-work, E, whereby the descent of the said rod in feeding the uppercarbon is rendered practically uniform and reduced to the desired speed.This train ot' wheels E is inclosed in a case, D, which is connectedwith the frame A by means of a surrounding band, A', provided withsockets for the reception of the sections of said frame, with which itis directly connected. Between these sockets and the said sections ofthe frame gaskets c of insulating material are fitted, so as to obviateany electrical connection between the said case D and the frame A.

The case D is provided with removable caps D' and D2, having rims whicht Within the case and are secured there by screws d. The cap D' Vhasconnected with it an upwardly-projecting tube in whichvthc rod BZ of theuppercarbon holder moves.

F F' designate two metal rods (shown as made hollow) whereby the lamp issuspended. At their upper ends (see Fig. 1) they are provided withbinding-screws, to which electliccircuit wire G is connected, and asthey are made of metal they serve as conductors for the electriccurrent. Between the rod F and the cap D is tted a bushing, e, toprevent electrical communication from the said rod to the cap. A plugforming the lower part of `the rod F is provided with a recess, in whichts thenaked endof a wire or conductor, H, which is insulated except atits said end. A setscrew,f, serves to secure the said end ot' the wirein place.

When it is desired to remove the cap D the screws d are loosened, andthe set-screw f is also turned to release the wire H, whereupon said capand its appurtenances may be taken ott and access to the case aorded.The capand its appurtenances may be secured by a reverse operation.

The wire or conductor H extends down through the hollow frame A of thelamp to an annular electro-magnet or solenoid, I, arranged in a case, J,which is provided with caps J' and J2, that are secured in placesimilarly to the caps D' and D2. This ease J is also secured to theframe A of the lamp similarly to the case D. The electro-magnet orsolenoid l is mounted on the cap J2.

K designates the armature of the electromagnet or solenoid. It consists,as here shown, of a disk extending over the top of the electromagnet orsolenoid, a central core or portion extendinginside the latter, and twosegmental portions tting outside it. These segmental portions areemployed in lieu of a cylindric portion to afford a passage for the wireor conductor H on one side.

L designates a spring jtting at one end against the central core orportion of the armature.

L' designates a screw working through the cap J2 of the shell J andbearing against the lower end ofthe spring. The spring tends to forcethe armature upward, and may be compressed more or less `by adjustingthe screw to suit electric currents of different potentials.

The holder C' for the lower carbon consists of a socket fitted upon arod, C2, and secured there by a setscrew, g. It is provided with aset-screw for retaining said carbon within it. The rod C2 is connectedto the armature K.

M designates a lever pivoted to a fulcrumpiece, M', within the lowerpart of the frame A. One end extends into proximity to a tappet, T,attached to the rod C2, and hence when said rod rises the lever isshifted. The lever M is not connected with the armature K, although itis actuated thereby, and the armature and the rod C2 supporting thelower carbon may be raised some distance before the tappet T strikesagainst and moves the lever M. The other end is forked and embraces anotched portion ot' an upright rod, N. The upper end of this rod N isnotched, and tits within the forked end of a lever, O, which is pivotedwithin the upper part of the frame A. The rod N is kept in place withinthe forked ends ofthe levers M and O by pins h, extending across thesection ot' the frame A containing said rod. At the inner end of thelever O it is connected by a piece of insulating inaterial, l?, with abar, Q, the upper end, Q', ot' which l'orms a dog or device which, byengaging with one of the wheels in the train ot' wheel-work E, blocksthe latter so as to prevent it from operating and allowing the uppercarbon to feed downward.

A spring', R, tends to hold the dog Q' in cngagement with the train ot'wheel-work. The case D forms a support for the wheel-work E and dog ordevice Q', and the lower case, J, forms a support for the magnet orsolenoid I, while the lever M, rod N, and lever O constitute the meansthrough which the armature K actuates the dog or device Q'.

The fulcrum-piece M for the lever M consists of a screw bil'ureated atthe upper end and receiving the said lever within it, and a nut fastenedto the frame A, receiving the lower end ot' the screw within it, andadapted to be turned from outside said frame to raise or lower the saidscrew.

It will be seen that all the mechanism of this lamp is concealed andprotected by the hollow frame A and the cases D and J. The electriccircuit extends from the wire G to the rod F, thence to the wire orconductor H, thence through the electro-magnet or solenoid I, thencetothe cap J2 of the shell J, and thence through the case J and its capJ' to the rod C, holder C', and lower carbon, G. Thence it IOO IOS

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' ent potentials.

extends to the upper carbon, B,thence through the holder B, plates B3 B4B5, and rod B2 to the cap Dl of the case D, and thence through the rod Fto the circuit-wire G. As soon as a current of electricity is sentthrough the lamp the electro-magnet or solenoid attracts the armature K,and thereby draws down the lower carbon and forms the voltaic arc. Whenby the burning away of the carbons the arc becomes materially prolongedthe resistance in the electric circuit thereby becomes augmented, andthe electromagnet or solenoid consequentlyis weakened. The spring L thenraises the armature and also the lower carbon, thereby shortening thevoltaic arc. When the armature rises sufficiently it rocks the lever M,and thereby releases the dog Q from the train of wheel-work E, permitsthe rotation of the train of wheel-work, and allows the upper carbon tofeed downward.

As the upper carbon descends the are is shortened, the resistance in thecircuit is reduced, and the electro-magnet or solenoid recovers itsnormal strength. The lower carbon is then drawn down, and the spring Itdraws down the dog Q into engagement with the train of wheel-work andstops the feed of the upper carbon. Thelainp continues to operate inthis way, and the carbons are kept in the proper relation to cach other.When the currentot'electricityis stopped the spring L raises the lowercarbon, and through the lever M and the mechanism with which it isconnected the dog Q is made to release the train of wheelwork and permitthe upper carbon to feed down to the lower carbon. The lamp is thus4left ready for further use when the current of electricity starts again,for als soon as the current starts the solenoid I draws down the lowercarbon and establishes the arc between it and the upper carbon. Thescrew L provides for adjusting the spring L so as to adapt the ar maturefor use with electric currents of differ- The adjustable i'ulcruin-picceM for the lever M also provides for adapting the lamp to electriccurrents of different potentials and to burn with a longer or shortervoltaic arc.

WhatI claim as my invention, and desire to secure by Letters Patent, is-

1. In an electric lamp, the combination of a single electric circuit, anelectro-magnet orsolenoid in said circuit, an armature for saidelectro-magnet or solenoid directly connected with tle lower carbon, atra-in of wheel-work for controlling thc feed of the upper carbon, a dogfor controlling said wheel-work, a lever adapted to be actuated by saidarmature, but arranged so that the armature may have a given range ofmovement before acting'upon the lever, and means for transmitting motionfrom said lever to said dog to effect the disengagement of said dog`from said wheel-work and permit the feed of the upper carbon,substantially as specied.

2. In an electric lamp, the combination of a single electric circuit, anelectro-magnet or solenoid, I, and an armature, K, therefor, containedin a case, J, the lower carbon, C, connected with said armature, theupper carbon, B, the train of wheel-work E for controlling` the feed ofthe upper carbon, and the device Q Q for regulating the operation ofsaid wheelwork, contained in a case, D, a hollow frame, A, connectingthe cases D and J, and the lever M, rod N, and lever O, arranged withinsaid hollow frame, substantially as specified.

3. In an electric lamp, the combination of a single electric circuit,the electro-m agnet or solenoid I and its armature K, the lower carbon,C, directly connected with said armature, the upper carbon, B, thewheel-work E, the dog Q', controlling said wheel-work,the lever M,connected with said dog and adapted to be actuated by said armature, butarranged so that the armature has a given range ot' movement beforeacting upon it, and the fulcrum M', adapted to be adjusted to suitcurrents of dif'- ferent potentials, substantially as specified.

4. In an electric lamp,the combinatioinwith a carbon-holder and itssupporting-rod, of two or more plates connecting said holder and rod,and a pivot or pivots connecting said plates eccentrically to saidholder and rod, so that the plates may be swung laterally relatively tocach other to adjust said carbon-holder into line with the oppositecarbon-holder, substantially as specied.

5. In an electriclamp, the combination, with a carbon-holder and itssupporting-rod, of two or more plates connecting said holder and rod anda screw or screws pivoting said plates together eccentrically to saidholder and rod, so that the plates may be swung laterally relatively tocach other, and also serving to clamp the plates together after suchlateral adjustment, substantially as specified.

6. The combination of the ca-se D, containing a train of wheel-work, E,the removable cap D', insulating-bushing c, suspending-rod F, wire orconductor H, and set-screw j', substantially as specified.

CHARLES A. HUSSEY.

Vitnesses:

EDWIN H. BROWN, ARTHUR C. WEBB.

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